Saw-filing clamp



J. SZAKO SAW FILING CLAMP Mg); 1924 3 Sheets-Sheet 1 Filed July attozmg Dec. 15, 1925- J. SZAKO SAW FILING CLAMP s Sheets-sheet Filed July 1924 Dec. '15, 1925- J. SZAKO SAW FILING CLAMP Filed July 2. 1924 3 Sheets-Sheet Patented Dec. 15, 1925. i

UNITED STATES JOHN SZAKO; or New YORK, N. Y.

SAW-FILING CLAMP.

Application filed July 2,

To all whom it may concern:

Be it known that I, J 01m SZAKO, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Saw-Filing Clamps, of which the following is a specification.

This invention relates to saw filing clamps.

An object of this invention'is to provide a saw clamp which not only will rigidly hold the saw against slippage and at the same time compensate for spring in the clamp and saw but which will also resist the force of the file when being pushed by a strong operator.

A further object of this invention is to provide a universal mount for such a clamp whereby it may be quickly set up under all sorts of conditions and may be quickly knocked down and carried in a minimum space.

With the above and other objects in, view, I have invented the device shown in the accompanying drawings, in which,

Figure 1 is a side elevation of my device;

Figure 2 is a side elevation of the same attached to a light bench or table;

Figure 3 is a top plan view of the clamp;

Figure 4 is an enlarged fragmentary end view in top plan of the clamp;

Figure 5 is a detail of the brace rod mount;

Figure 6 is a section on line 66 of Figure 2; and

Figure 7 is a fragmentary View somewhat similar to Figure 5 showing a modification.

Like reference characters indicate like parts throughout the several views of the drawings and in the specification in which, I provide a pair of clamping jaws 2 and 3 of a length substantially that of a saw blade, the opposing faces of which are lined with leather as at 4, which leather faces tightly and rigidly grip the saw with a relatively light clamp upon the jaws. The jaws are carried by a pair of U-shaped holding members, and are mounted thereto as follows: The jaw 2 is perforated with a screw thread ed hole 5, adapted to receive the threaded end of the bolt 6 which extends through one side of the U-shaped members and the bolt 6 carries a spring 7. one end of which spring seats against a shoulder 8 and the other end of which seats against the head 9 of the bolt 6, so that the jaw 2 is yieldingly held against that side of the U-shaped member. The apposing jaw 3 is held by a pin 10 car- 1924. Serial No. 723,844.

ried by screw threads 11 in the other side of the U-shaped member. The jaws are clamped by turning the knurled head 12 of a clamp screw 13 which extends through one side of the U-shaped members and engages the jaw 2. Both ends of the jaws being mounted and clamped in the same manner, a description of one end applies to the other end. The U-shaped holding members designated as 14 and 15, are each provided with a detachable upright shaft 1:), telescoping over which is a tube 16, the tube being split at 17 and carrying over the split portion a clamping collar 18. Inserted into the lower end of thetube 16 is a foot rod 19 provided with a perforate too 20 and ter-- minating in a point 21. Interconnecting the tubes 16 at end of the clamps is a pair of horizontal tubes 22 and 23, each of which carries a clamp such as 24 whereby the cross tubes may be slid up or down upon the tubes 16 and set by the clamps 24 at any predetermined position. When mounted to a table such as 25 the U-shaped holding members, which are provided with sockets 26 and wing clamp bolts 27, are inserted with the sockets embracing the table top and the wing bolts set. If the table is sufliciently rigid and the operator does not desire to be seated, the tubes 16 and apparatus carried thereby may not be used.

Where there is no convenient table or where it is not desired to mount the same to a table, inclined legs comprising rods 28 and tubes 29 are pivotally mounted and adapted to be clamped at 30 to the upper outer nose of the socket 26, and carry bracket table rods 31 braced by rods 32. As shown in the detail in Figure 5, the tube 29 is provided with a drilled hole 33 in its upper wall, and the brace 32 carries at its end a pin 34 which drops into the hole 33, the brace also carrying a yoke 35 which straddles the tube 29 and which is anchored thereto by a wing screw 36.

The horizontal tube 22 is provided in its top surface with a pair of spaced holes and a chair 37 is reinforced at its forward end by a strap, passing through which strap are a pair of extending bolts, the purpose of which bolts is doubly that of anchoring the re-inforcing strap to the chair and also fitting into the spaced holes to prevent the chair 37 from sliding upon the tube 22. The chair 37 is provided with a pivoted third leg 38, likewise extensible.

When the operator is seated upon the chair 37, it will be seen that by the arrangement herein shown, that his weight will anchor the clamp against the-force of'the filing operation whether the device be mounted as shown in Figure l or as shown in Figure 2, and at the same time the operator will be in a restful position.

vBy the telescoping and extensible arrangement of thevarious legs it will be observed that any desired adjustment may be had to accommodate diiferent sized operators or tables, or to suit other desired conditions.

Carried at the back of the jaw 2 is a file box 39. r

In Figure 7 I show a slight modified form of connection in which the member 31 is pivotally connected between a pair of bosses 4:0 and ll projecting from the member. 29 by means of the screw pin .42.

Claims:

1. In combination, a pair of saw clamp jaws, U-shaped yokes for supporting the jaws, a pin anchored to one sideof the yokes and penetrating one of the jaws to support the-same, and a pair of pins carried by the other side of the yokes, one of the .pins yieldinglysupporting the other jaw and the other pin being adapted to clamp the jaws together.

2. In combination, a saw clamp and supporting legs therefor including inclined legs, a table member mounted to the inclined legs by a brace rod, the'inclined leg perforate-on its top and the brace rod provided with a pin fitting the perforation and with a yoke embracing the rod and clamp screw for holding the clamp and in in the predetermined relation to the perforation.

3. In combination, a saw clamp, vertical tubular legs supporting-the clamp, tubular braces one above the other tieing the legs together, holes in the upper wall of the upper brace, a seat having a leg at one end and a reinforcing strap at the other end, bolts passing through the seatand strap and projecting beyond the strap and adapted to engage the holes.

4. In combination, a saw clamp, supporting legs for the clamp, a pair of braces interconnectingsaid legs, theupper brace having spaced apertures, a seat, and projections carried by said seat adapted to engage said apertures.

5. In combination, a saw clamp, supporting legs for the clamp, brace rods interconnecting said legs and capable of adjustment upon said legs, the upper brace rod having spaced apertures, a seat, projections carried by one end of said seat adapted to engage said apertures, and an adjustable leg supportingthe opposite end of said seat.

'6. In combination, a saw clamp and supporting legs therefor, including inclined legs having openings therein, a table member extending from said clamp, brace i'ods de pending from said table member having a yoke at their lower ends adapted to embrace said legs and provided with pins to engage said openings, and a clamp screw carried by said yokes for securing said brace rods in place.

7. In combination, a saw clamp and supporting legs therefor, including inclined legs having openings therein, a table mem- P her, and supports for said table member having yokes at their lower ends adapted to straddle said inclined legs and provided with pins to engage said openings.

In testimony whereof I affix my signature.

JOHN SZAKO. 

